PART A: Which statement best expresses the central idea of the article? A Mandela was widely loved and respected by the people of South Africa, until he decided to shift from nonviolent protests to violent tactics. B Mandela was sad to see South Africa erupt in violence, as he had predicted would happen if leaders did not take his suggested course of action. C Even though Mandela was imprisoned for his actions against the government in power, he remained strong and optimistic about the struggle for black equality in South Africa. D Even though Mandela created significant social and political change before entering prison, his isolation from the world prevented him from further contributing and dampened his spirit.